| 摘要 |
<p>PROBLEM TO BE SOLVED: To remove dust together with injurious components in gas. SOLUTION: A device is constituted by disposing coaxially an inner cylinder 2 and an outer cylinder 3 on an intermediate section of a container 1 standing vertically, forming a 9 filled with powder annularly between two cylinders, forming a number of openings for passing gas and preventing the outflow of powder on both cylinders, flowing gas from one opening to another opening through the moving bed and crossing the downcoming of the moving bed with the flow of gas to remove the dust in the gas. In that case, the upper section of the inner cylinder 2 is covered by an engaging pipe 4 provided for engaging with one vent hole, and the upper section of the outer cylinder 3 is connected with a powder storage chamber 8, and the moving bed is formed by feeding powder successively from the power storage chamber, and the lower ends of inner and outer cylinders are opened into the container, and a ventiation chamber 6 with the other vent hole is provided on the periphery of the outer cylinder, and the bottom section of the ventilation chamber 6 is connected with a powder discharge section.</p> |
